Ventilator for windows



(No Model.)

MVBNTILATOB. P011 WINDOWS.

No. 258,282. Patented May 23, 1882.

FholoLilhcgnpher. Washington. D. c.

UNITED STATES PATENT OFFICE.

HUGH H. CRAIG, OF BALTIMORE, MARYLAND.

VENTILATOR FOR WINDOWS.

SPECIFICATION forming part of Letters Patent No. 258,282, dated May 23,1882.

Application filed February 24, 1882. (No model.)

To all whom it may concern I Be it known that I, HUGH H. CRAIG, ofBaltimore city, State of Maryland, have invented certain new and usefulImprovements in Ventilators for Windows; and I hereby declare the sameto be fully, clearly, and exactly described as follows, reference beinghad to the accompanying drawings, in which.

Figure 1 is a central vertical sectional view of a window embodying myinvention. Fig. 2 is a top plan of the device, and Figs.3 and 4. areeach elevations and plans of modified forms of a detail of the device.

My invention has for its object to provide a simple device of suchconstruction as to be applied beneath the bottom of the sash and betweenthe window-beads, and defeat the entrance of air at that point aseffectually as the sash itself when fully lowered, but which, when inplace, shall effect a separation of the top bar of the lower sash fromthe bottom bar of the upper, and admit the air above the heads ofpersons occupying the apartment, whereby they are protected from directdrafts and the room is efficiently ventilated. To this end I havedevised a bar, by preference hinged in the middle, as shown, andprovided with a flange adapted to close against the side of the lowersash-bar. y

In the drawings, A and B are respectively the upper and lower sashes. I)is the top bar of the lower sash, and a the bottom bar of the uppersash; and O is the base-bar of the sash. c e are the beads. Theventilator-bar c is hinged or pivoted in the center, and is providedwith a flangeor bead, d, adapted to rest against the inside of the sash,whereby any currents of air which may enter between the 'ing theapartment.

sash and bar are directed vertically on enter- The meeting edges of theflange d atfis atone sideof the joint between the parts of the bar 0, soas to obstruct the entrance of air at the joint. In the form. shown inFigs. 1 and 2 the joint or hinge is at the side of the bar 0. In theform shown in Fig. 4 the hinge i is at the top or bottom, and in theform shown in Fig. 3 it is in the center, a pin, h, serving as thepivot. The flanges (I stop short of the ends of the bare by about thethickness of the sash-beads e.

To place the device in position, the sashisraised, and the parts of thebar 0 are suftieiently inclined to admit of the ends being broughtbetween the heads when the bar isstraightened out and the sash is shutdown closely upon it, as shown in Fig. 1. As close and tight a joint isformed at the bottom of the sash as if the same were fully down in thewindow-frame, so that there are no drafts at the bottom, the air findingaccess to the apartment between the parts a and b.

, Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A window-ventilator consisting of a bar adapted, when placed inposition, to separate the meeting bars of the sash, and provided with a.flange, d,'as and for the purpose set forth.

2. The wimlow-ventilator herein described, consisting of the bar 0, madein two parts, hinged or pivoted together, and having the flange cl andoverlappingjoint f, as set forth.

Witnesses: HUGH H. CRAIG.

J NO. '1. MADDOX, R. D. WILLIAMS.

